Keystones — Capstone
Five GCSE retrieval questions · 15 July 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 135. What are the numbers?
Answer: 44, 45, and 46 -
2. Algebra
Find the next term: 1, 2, 4, 7, ...
Answer: 11 -
3. Geometry
Adjacent = 13cm, hypotenuse = 33cm. Find the angle
Answer: 66.8° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 20. If 3 of them are 30, 44, 48, what is the missing number?
Answer: -42